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need help with wiring

Posted: Tue Oct 12, 2021 1:29 pm
by mk1_leet
i need help to identify the wires because i am trying to upgrade the stereo

i have circled the ones i need help with plus there is a black and red cable (the blank one) which is not labelled on the old stereo
https://imgur.com/a/jdexBuG

Re: need help with wiring

Posted: Fri Oct 15, 2021 8:06 am
by alexperkins
You need a quad lock to ISO adapter

The radio on this uses a CAN power feed so the adapter also needs an ignition live tagging onto it from either a piggy back fuse or another location nearby

Re: need help with wiring

Posted: Fri Oct 15, 2021 10:54 pm
by Bepis
I have an adapter harness and some other radio bits for a 9n3 PM me if you're interested.

Re: need help with wiring

Posted: Wed Jan 05, 2022 3:37 pm
by wevegoneplaid
Hey @mk1_leet, I found this on another forum. That, with your picture, has actually helped me a lot. The below is the full wire color pin out for an RCD 200 deck with front and rear speakers. If you only have front, or less accessories, then just subtract that connector.


"Multi-pin connector 1, 8-pin, loudspeaker outputs
1 -Rear right loudspeaker, positive Blue wire
2 -Front right loudspeaker, positive Red wire
3 -Front left loudspeaker, positive Red/Green wire
4 -Rear left loudspeaker, positive Blue/White wire
5 -Rear right loudspeaker, negative Brown/Blue wire
6 -Front right loudspeaker, negative Brown/Red wire
7 -Front left loudspeaker, negative Brown/Green wire
8 -Rear left loudspeaker, negative Brown/White wire

Multi-pin connector 2, 8-pin, voltage supply, CAN bus, telephone mute switch
9 -CAN bus high Orange/Black wire
10 -CAN bus low Orange/Brown wire
11 -Telephone mute switch White/Lilac wire
12 -Negative connection, terminal 31 Brown wire
13 -Not assigned Might have a Black/Red wire ? (12v "S" supply "key in ignition" ) Fuse 10
14 -Not assigned
15 -Positive connection, terminal 30 Red/Yellow wire (12v Live battery supply) Fuse 51
16 -Anti-theft coding control signal, SAFE Red/Yellow wire (12v Live battery supply Fuse 51

Multi-pin connector 3, 12-pin, telephone signal input

1–5 -Not assigned
6 -Telephone low-frequency audio signal input, negative
7–11 -Not assigned
12 -Telephone low-frequency audio signal input, positive

Multi-pin connector 4, 12-pin, CD changer control and CD audio input signals or iPod cradle
1 -Right headphone output signal, positive
2 -CD changer or iPod cradle, left and right channels, negative
3 -Headphone output signal, audio earth
4 -CD changer, voltage supply, positive
5 -Left headphone output signal, positive
6 -CD changer, DATA OUT (data exchange for CD changer control from radio navigation system to CD changer)
7 -Not assigned
8 -CD changer or iPod cradle, audio output, left channel, positive
9 -CD changer or iPod cradle, audio output, right channel, positive
10 -CD changer or iPod cradle, control signal
11 -CD changer, DATA OUT (data exchange for CD changer control from CD changer to radio navigation system) or iPod cradle
12 -CD changer or iPod cradle, CLOCK (internal check protocol for data flow monitoring)

________BREAK___________

Bepis, I'm interested in your parts. Trying to fix/restore an old hacked up harness.

Re: need help with wiring

Posted: Wed Jan 05, 2022 3:52 pm
by wevegoneplaid
Sorry, MK1Leet, to be more clear with your question/answer.

Going from top left to bottom right of your circled wire question:

1: CAN Bus High (Orange/Black)
2: CAN Bus Low (Orange/Brown)
3: Possibly 12v Key Switching Power (Black/Red)
4: 12v Hot lead always on (Red/Yelllow)
5: 12v Hot Anti Theft always on (Red/Yellow)

Something like that.

I'm wondering if I can take the switching power lead from my double DIN head unit and connect it directly to the Black/Red Switching Power lead in the original loom and save myself 50 bucks for the CAN Bus adapter. Will report back.

Re: need help with wiring

Posted: Wed Jan 05, 2022 5:17 pm
by wevegoneplaid
Sweet, I confirmed that wiring the switching lead directly to the red/black switching wire will produce the on/off function of the radio with key in and out action. Sorry to hijack your thread. I'll make a thread tomorrow with pictures.